Combine milk and peanut butter in a bowl and mix until smooth.
Gradually add flours.
(If using bacon, add now.)
Knead dough by hand and roll out on floured surface to desired thickness. Cut-out treats.
Place parchment on cookie sheet and bake 15 minutes at 400°F.
Cool completely before serving to your lucky dog! hee hee
Note: If dough seems too dry or crumbly, add a little more milk
Note: I sometimes brush the tops with beef or chicken broth before baking!
* Always speak to your vet before baking something new for your pup!